74CBTLV3257PPG datasheet(4/5 Pages) IDT

Part #	74CBTLV3257PPG

Description	LOW-VOLTAGE QUAD 2:1MUX/DEMUX BUS SWITCH

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Manufacturer	IDT [Integrated Device Technology]

Direct Link	http://www.idt.com

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INDUSTRIALTEMPERATURERANGE

4

IDT74CBTLV3257

LOW-VOLTAGE QUAD 2:1 MUX/DEMUX BUS SWITCH

Open

VLOAD

GND

VCC

Pulse

Generator

D.U.T.

500



500



CL

RT

VIN

VOUT

(1, 2)

SAME PHASE

INPUT TRANSITION

OPPOSITE PHASE

INPUT TRANSITION

0V

VOH

VOL

tPLH

tPHL

tPLH

OUTPUT

VIH

VT

VIH

VT

CONTROL

INPUT

tPLZ

0V

OUTPUT

NORMALLY

LOW

tPZH

0V

SWITCH

CLOSED

OUTPUT

NORMALLY

HIGH

ENABLE

DISABLE

SWITCH

OPEN

tPHZ

0V

VOL + VLZ

VOH

VT

tPZL

VLOAD/2

VIH

VT

VOL

VOH -VHZ

TEST CIRCUITS AND WAVEFORMS

Test Circuits for All Outputs

Enable and Disable Times

Propagation Delay

NOTES:

1. Pulse Generator for All Pulses: Rate

≤ 10MHz; tF ≤ 2.5ns; tR ≤ 2.5ns.

2. Pulse Generator for All Pulses: Rate

≤ 10MHz; tF ≤ 2ns; tR ≤ 2.5ns.

DEFINITIONS:

CL = Load capacitance: includes jig and probe capacitance.

RT = Termination resistance: should be equal to ZOUT of the Pulse Generator.

Symbol

VCC(1)=3.3V±0.3V

VCC(2)=2.5V±0.2V

Unit

VLOAD

6

2 x Vcc

V

VIH

3

Vcc

V

VT

1.5

Vcc / 2

V

VLZ

300

150

mV

VHZ

300

150

mV

CL

50

30

pF

TEST CONDITIONS

Test

Switch

tPLZ/tPZL

VLOAD

tPHZ/tPZH

GND

tSEL

Open

tPD

Open

SWITCH POSITION

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